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reefjunkie88

Purple Up

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JPerkins   

I would say no. Keep your alk up with 2 part or calcium reactor. Better to just get a nice rock with some corralline and scrape it in front of a powerhead in your tank while keeping alk/calcium/mg up. At least you get a nice rock and better results instead of an empty bottle.

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CaptJab   

Not in my opinion, purple up is nothing more than crushed up Corallline algae. By adding it you are releasing coralline spores in to the water, it has very little effect on your calcium levels. A true calcium buffer would be much better. Try a 2 part dosing to help with calcium and Alk. If you just need calcium use calcium chloride.

Your best bet would be to get a good magnesium test kit to monitor your Mg. if you do that your Alk and Calcium will be much easier to manage. Always keep an eye on your ph and Alk when dosing.

One more thing, never dose what you can't test for and go slow. JMO

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